Complex sentence structure

A complex sentence is a sentence that has at least one main clause and one subordinate clause. noun, adjective and adverb clauses are all types of subordinate clauses. each of these sentences is a complex sentence because it contains a subordinate clause.

Complex sentences

1 when a subject comes before an adjective clause, do not add an extra subject after the adjective clause.

2 when a noun clause is used as a subject, do not add an extra subject after the noun clause.